diff --git a/www/rubygem-cuba/Makefile b/www/rubygem-cuba/Makefile
index 393fe4b38a26..baf4e4c62886 100644
--- a/www/rubygem-cuba/Makefile
+++ b/www/rubygem-cuba/Makefile
@@ -1,20 +1,20 @@
 PORTNAME=	cuba
 PORTVERSION=	3.9.3
 CATEGORIES=	www rubygems
 MASTER_SITES=	RG
 
 MAINTAINER=	ruby@FreeBSD.org
 COMMENT=	Microframework for web applications
 WWW=		https://github.com/soveran/cuba
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-RUN_DEPENDS=	rubygem-rack>=1.6.0:www/rubygem-rack
+RUN_DEPENDS=	rubygem-rack>=1.6.0,3:www/rubygem-rack
 
 USES=		gem
 USE_RUBY=	yes
 
 NO_ARCH=	yes
 
 .include <bsd.port.mk>